Ground-anchor.



H. FUGHS.

GROUND ANGHOR.

AEPLIOATION :FILED SEPT. zz, 1909.

Patented Apr. 12, 1910.

nvEenmF HEINRICH FUCHS, OF FRIEDRIGHSFELDE, NEAR BERLIN, GERMANY.

GROUND-ANCHOR.

Original application iled May 28, 1909, Serial No. 498,891.

Specification of Letters Iatent.

Patented Apr. 12, 1910.

Divided and this application filed September 22, 1909. Serial No.518,995.

To all whom it may concern:

Be it known that I, HEINRICH FUCHS, a subject of the German Emperor, andresiding at Friedrichsfelde, near Berlin, Germany, have invented certainnew and useful Improvements in Ground-Anchors, of which the following isa specification.

Myl invention relates to anchors and a primary object is to provide animproved ground anchor which can be taken to pieces, having a tubularshank and pivoted arms, and arranged in such manner that after thefolded anchor has been placed in the ground, it is spread out when theshank is pulled. The arms are detachable from the shank, so that whenthe anchor is being removed from the ground the shank and the arms canbe withdrawn separately, which facilitates the anchor being obtainedagain.

One const-ructional form of anchor according to my invention isrepresented by way of example in the accompanying drawing, in which:

Figure 1 is an elevation, partly in section, the detachability of theshank from the arms being obtained by means other than those used in theform shown in my co-pending application Serial No. 498,891, filed May28,' 1909, and Figs. 2 to 5 show various details of the anchor.

Referring to the drawing the anchor consists substantially of the shankp, four arms el, carrying springs Z, the chains h1, and the attachmentmeans hereinafter described. Instead of detaching the arms from theshank by withdrawing keys, as in my copending application, this is doneby using a tubular shank p, which may be an ordinary iron pipe,containing movable holding means which will now be described. Namely, inthis pipe a spindle 1' is mounted between two fixed disks g, g, saidspindle being squared at its top end and able to be turned by a loosekey, About in the center of the spindle and at its bottom end, at whichplaces the same is screw-threaded, are provided cross pieces s (Fig. 3)which are guided in slots in the pipe p by means of pins 25. The crosspieces have pegs or tongues u, around vwhich the end links 'v of thechains 71.1 or the links fw of the arms e1 engage.

The anchor is used as follows: It is put into the ground in known mannerby boring a hole into which the folded anchor is placed. The springspress the arms outwardly, so that the outwardly bent points of the armsare pressed into the sides of the hole. Now when the shank is pulled,the points of the arms will engage in the ground. As the shank iscontinued to be pulled the arms will open until the chains 77.1 arestretched and prevent them opening far ther. In this position the anchoroffers its greatest resistance. The anchor is not removed from theground by digging it out, as is otherwise the case, but by detaching thearms from the shank p by raising the cross pieces s by rotating thespindle r and removing their tongues u from the links o and the linkslw. The shank is rst removed from the hole and then the arms areindividually withdrawn by means of their ropes m or the like. The partsthus obtained again can be assembled, and the anchor can be used afresh.

I claim:

1. An anchor comprising in combination, a tubular shank, screw-threadedholding means therein, a plurality of arms detachably and pivotallyattached at the bottom portion of said shank to said means, and

means detachably and movably connecting said arms at a higher portion ofthe shank to said means, for the purpose specified.

2. In an anchor which can be dismembered, the combination, with atubular shank, of screw-threaded holding means therein, an arm pivotallyattached to the bottom portion of said means, a spring o n said arm, anda chain attached near the point of said arm and engaging the upperportion of said means.

3. In an anchor which can be dismembered, the combination, with aperforated tubular shank, of a spindle revoluble therein, said spindlehaving a lower screw-thread and an upper screw-thread, an upper crosspiece having a tongue movable on said upper screw-thread, a lower crosspiece having a tongue movable on said lower screw-thread, an arm, a linkattached to the bottom end of said arm and normally passing around thelatter tongue, and a chain attached to said arm and normally held by theformer tongue.

HEINRICH FUCHS. Witnesses:

WOLDEMAR HAUPT, HENRY HASPER.

